Solve problems involving the calculation of percentages [for example, of measures, and such as 15% of 360] and the use of percentages for comparison

1. Having a spell: Compare marks on a percentage basis
2. Truth about fractions: Larger 19/50 or 42%
3. Percentage wise: 75% of 64 minutes
4. Make your point: Write a part as a percentage of the whole
5. Make Your Point: Write a part as a proportion of the whole